'Brother' in the Bible

But you, why do you find fault with your brother? Or you, why do you look down upon your brother? We shall all stand before God to be judged;

If your brother is pained by the food you are eating, your conduct is no longer controlled by love. Take care lest, by the food you eat, you lead to ruin a man for whom Christ died.

Gaius, my host, who is also the host of the whole Church, greets you. So do Erastus, the treasurer of the city, and Quartus our brother.